NEW YORK (MainStreet)In 2012, Americans estimated they would spend $1,180 per person on summer vacations, according to a survey conducted by American Express. This year, over 1,200 people responded to a similar summer vacations survey by TripAdvisor. 86% said they plan to take a trip this season. 53% of those packing their bags plan to spend the same amount this year, and 25% plan to spend more. But with a little insider knowledge, people paying north of a grand for summer fun could pay a lot less--and so could you. We asked travel, hotel and food service industry experts how they'd save on their own summer vacations. This is what they came up with.